65445730 has 16 divisors (see below), whose sum is σ = 134631360. Its totient is φ = 22438512.

The previous prime is 65445707. The next prime is 65445763. The reversal of 65445730 is 3754456.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467400 + ... + 467539.

It is an arithmetic number, because the mean of its divisors is an integer number (8414460).

Almost surely, 2^65445730 is an apocalyptic number.

65445730 is an abundant number, since it is smaller than the sum of its proper divisors (69185630).

65445730 is a wasteful number, since it uses less digits than its factorization.

65445730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934953.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 65445730 is about 8089.8535215417. The cubic root of 65445730 is about 402.9895384855.

The spelling of 65445730 in words is "sixty-five million, four hundred forty-five thousand, seven hundred thirty".